Engineering

New quantum sensing technique reveals magnetic connections

Say you notice a sudden drop in temperature on both your patio and kitchen thermometers. At first, you think it's because of a cold snap, so you crank up the heat in your home. Then you realize that while the outside has ...

Engineering

Changing shapes at the push of a button

Programmable materials are true shapeshifters. They can change their characteristics in a controlled and reversible way with the push of a button, independently adapting to fit new conditions. They can be used, for example, ...

Electronics & Semiconductors

More efficient monitoring of wind turbines and electric vehicles

Researcher Sveinung Attestog shows in a new study how we can more quickly detect faults in machines that are widely used in wind turbines and electric cars. This is something that could pay off for electricity customers and ...

page 7 from 27

Magnetism

In physics, magnetism is one of the forces in which materials and moving charged particles exert attractive, repulsive force or moments on other materials or charged particles. Some well-known materials that exhibit easily detectable magnetic properties (called magnets) are nickel, iron, cobalt, gadolinium and their alloys; however, all materials are influenced to greater or lesser degree by the presence of a magnetic field. Substances that are negligibly affected by magnetic fields are known as non-magnetic substances. They include copper, aluminium, water, and gases.

Magnetism also has other definitions and descriptions in physics, particularly as one of the two components of electromagnetic waves such as light.

This text uses material from Wikipedia, licensed under CC BY-SA